* Add InitializeFloatingPointUnits() to x86 specific file
* Add GetCpuFamilyModel() to x86 specific file
* Add GetCpuSteppingId() to x86 specific file
* Move StandardSignatureIsAuthenticAMD() to x86 specific file.
* Add CpuLib library class include to all C files.
Cc: Liming Gao <gaolim...@byosoft.com.cn>
Cc: Zhiguang Liu <zhiguang....@intel.com>
Cc: Laszlo Ersek <ler...@redhat.com>
Cc: Qing Huang <qing.hu...@intel.com>
Signed-off-by: Michael D Kinney <michael.d.kin...@intel.com>
---
.../Library/BaseCpuLibNull/BaseCpuLibNull.c | 17 +----
.../Library/BaseCpuLibNull/BaseCpuLibNull.inf | 3 +
.../BaseCpuLibNull/X86BaseCpuLibNull.c | 64 +++++++++++++++++++
3 files changed, 69 insertions(+), 15 deletions(-)
create mode 100644 MdePkg/Library/BaseCpuLibNull/X86BaseCpuLibNull.c
diff --git a/MdePkg/Library/BaseCpuLibNull/BaseCpuLibNull.c
b/MdePkg/Library/BaseCpuLibNull/BaseCpuLibNull.c
index 3542cf6921f7..0080022b94ef 100644
--- a/MdePkg/Library/BaseCpuLibNull/BaseCpuLibNull.c
+++ b/MdePkg/Library/BaseCpuLibNull/BaseCpuLibNull.c
@@ -6,6 +6,8 @@
**/
+#include <Library/CpuLib.h>
+
/**
Places the CPU in a sleep state until an interrupt is received.
@@ -35,18 +37,3 @@ CpuFlushTlb (
)
{
}
-
-/**
- Determine if the standard CPU signature is "AuthenticAMD".
-
- @retval TRUE The CPU signature matches.
- @retval FALSE The CPU signature does not match.
-**/
-BOOLEAN
-EFIAPI
-StandardSignatureIsAuthenticAMD (
- VOID
- )
-{
- return FALSE;
-}
diff --git a/MdePkg/Library/BaseCpuLibNull/BaseCpuLibNull.inf
b/MdePkg/Library/BaseCpuLibNull/BaseCpuLibNull.inf
index a9e8399038a6..9f20d6833f56 100644
--- a/MdePkg/Library/BaseCpuLibNull/BaseCpuLibNull.inf
+++ b/MdePkg/Library/BaseCpuLibNull/BaseCpuLibNull.inf
@@ -22,5 +22,8 @@ [Defines]
[Sources]
BaseCpuLibNull.c
+[Sources.IA32, Sources.X64]
+ X86BaseCpuLibNull.c
+
[Packages]
MdePkg/MdePkg.dec
diff --git a/MdePkg/Library/BaseCpuLibNull/X86BaseCpuLibNull.c
b/MdePkg/Library/BaseCpuLibNull/X86BaseCpuLibNull.c
new file mode 100644
index 000000000000..4469bcc767cf
--- /dev/null
+++ b/MdePkg/Library/BaseCpuLibNull/X86BaseCpuLibNull.c
@@ -0,0 +1,64 @@
+/** @file
+ Null instance of CPU Library for IA32/X64 specific services.
+
+ Copyright (c) 2024, Intel Corporation. All rights reserved.<BR>
+ SPDX-License-Identifier: BSD-2-Clause-Patent
+
+**/
+
+#include <Library/CpuLib.h>
+
+/**
+ Initializes floating point units for requirement of UEFI specification.
+ This function initializes floating-point control word to 0x027F (all
exceptions
+ masked,double-precision, round-to-nearest) and multimedia-extensions control
word
+ (if supported) to 0x1F80 (all exceptions masked, round-to-nearest, flush to
zero
+ for masked underflow).
+**/
+VOID
+EFIAPI
+InitializeFloatingPointUnits (
+ VOID
+ )
+{
+}
+
+/**
+ Determine if the standard CPU signature is "AuthenticAMD".
+ @retval TRUE The CPU signature matches.
+ @retval FALSE The CPU signature does not match.
+**/
+BOOLEAN
+EFIAPI
+StandardSignatureIsAuthenticAMD (
+ VOID
+ )
+{
+ return FALSE;
+}
+
+/**
+ Return the 32bit CPU family and model value.
+ @return CPUID[01h].EAX with Processor Type and Stepping ID cleared.
+**/
+UINT32
+EFIAPI
+GetCpuFamilyModel (
+ VOID
+ )
+{
+ return 0;
+}
+
+/**
+ Return the CPU stepping ID.
+ @return CPU stepping ID value in CPUID[01h].EAX.
+**/
+UINT8
+EFIAPI
+GetCpuSteppingId (
+ VOID
+ )
+{
+ return 0;
+}
--
2.40.1.windows.1
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